Which two human activities are largely responsible for the observed atmospheric warming?
A. burning of fossil fuels and clearing of forest land
B. burning of fossil fuels and growth of urban areas
C. burning of rainforests and loss of ice in the Arctic
D. cigarette smoking and the explosion of airline travel
Answer: A
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In ____________________, species interact in order to gain access to limited resources such as food or space.
Fill in the blank(s) with the appropriate word(s).
Answer the following statement(s) true (T) or false (F)
1. In the Americas, the Inca and the Aztecs dominated large regions. 2. It is now widely accepted that modern humans spread out of Asia to other parts of the world. 3. Latin America includes the Caribbean. 4. Mongolia is included in Russia and Neighboring Countries. 5. GIS includes the use of satellite imagery.
Suppose you are told that the area where you lived was once a shallow sea that evaporated. What kind of rock are you most likely to find that is related to that time?
A. Clastic B. Biochemical C. Chemical
1) The population of India is approximately:
A) 3.1 billion B) 1.25 billion C) 325 million D) 35 million E) 100 million